L-Theanine CAS 3081-61-6

Theanine is a characteristic amino acid in tea, synthesized by glutamic acid and ethylamine under the action of the enzyme theanine synthase in the root of the tea tree, it is an important substance in the formation of tea flavor, which is mainly manifested as freshness and sweetness. It is the main ingredient of tea to make the tea flavor fresh and sweet. Tea identified 26 kinds of amino acids (6 kinds of non-protein amino acids), generally accounted for 1% to 5% of the dry weight of tea, and theanine accounted for more than 50% of the total amount of free amino acids in tea.

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Model:
3081-61-6
Brand:
Future Chemical
Code:
3081-61-6

Product Description

L-Theanine Basic information
Product Name:	L-Theanine
CAS:	3081-61-6
MF:	C7H14N2O3
MW:	174.2
EINECS:	221-379-0
Mol File:	3081-61-6.mol
L-Theanine Chemical Properties
Melting point	207°C
Boiling point	430.2±40.0 °C(Predicted)
density	1.171±0.06 g/cm3(Predicted)
refractive index	8 ° (C=5, H2O)
storage temp.	2-8°C
solubility	Soluble in Water (up to 20 mg/ml).
form	powder
pka	2.24±0.10(Predicted)
color	White
Odor	Odorless
Water Solubility	almost transparency
Stability:	Stable for 2 years from date of purchase as supplied. Solutions in distilled water may be stored at -20° for up to 2 months.
InChI	InChI=1S/C7H14N2O3/c1-2-9-5(7(11)12)3-4-6(8)10/h5,9H,2-4H2,1H3,(H2,8,10)(H,11,12)/t5-/m0/s1
InChIKey	DATAGRPVKZEWHA-YFKPBYRVSA-N
SMILES	C(O)(=O)[C@H](CCC(N)=O)NCC
LogP	-0.661 (est)
CAS DataBase Reference	3081-61-6(CAS DataBase Reference)

L-Theanine CAS 3081-61-6 C7H14N2O3 Food additive

Quality Assurance

Full-Process Quality Control: From incoming raw material inspection to in-process monitoring and final outgoing checks, every batch is inspected at each production stage against strict acceptance standards.
Third-Party Certified & Tested: Our quality management system is certified to ISO 9001, and products are regularly tested by accredited laboratories (e.g. SGS, TÜV). Test reports are available on request.
100% Batch Traceability: Each batch carries a unique lot number that links raw material records, production parameters, and test results, enabling complete traceability from factory to final delivery.
Pre-Shipment Inspection: Every order passes a final pre-shipment inspection, with inspection photos and reports shared before dispatch.

FAQ From Customers

Q1: What is the minimum order quantity?

A: There is no quantity limit for the first sample or trial order. Just tell us the actual quantity you need.
Q2: How can I confirm that the quality meets the requirements?

A: Provide your specifications, and our technical team will check them or customize them for you; we can provide TDS, MSDS, and COA, and accept third-party testing.
Q3: How do you ensure stable quality?

A: We manufacture under an ISO 9001 quality system, test every batch before release, and retain samples for 24 months for traceability.
Q4: Do you provide samples?

A: Yes — Free samples are available; freight is at buyer's expense for express delivery.